Download Color Atlas of Gross Placental Pathology by Diaz James PDF

By Diaz James

Careful assessment of the placenta can usually supply a lot perception into problems of being pregnant within the mom and fetus. The thoughts of gross placental exam usually are not tough, yet a scientific technique is important to be whole. colour Atlas of Gross Placental Pathology, moment variation is designed to assist within the cautious and thorough gross exam of the placenta through delivering an illustrated guide of exam that incorporates general diversifications, irregular findings, in addition to strange pathology.

"...this atlas encompasses a wealth of vital details for pathologists interpreting the placenta and offers fabulous illustrations. This atlas is very instructed for all these engaged in pathologic exam of the placenta."

Archives of Pathology & Laboratory Medicine

"The caliber of any atlas will depend on transparent and applicable illustrations and concise textual content in a structure that enables for speedy identity of particular entities. This atlas has either. the standard of the illustrations is best rate."

American magazine of Surgical Pathology

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Extra resources for Color Atlas of Gross Placental Pathology

Sample text

The etiology of this process is unknown, but there may be a risk of recurrence. 6. Extrachorial placentation is displayed schematically with the extrachorial portion enclosed by dotted lines. The right cross-section shows the redundant membrane fold characteristic of circumvallation. This frequently contains old hemorrhage continuous with the decidua. Such changes are absent in circummargination (left) in which the membranes are flat with a small deposit of fibrin. 7. This circumvallate placenta shows a complete circumferential fold of membranes where the vascular plate ends.

Length One of the most obvious features of the umbilical cord is the length. This increases throughout gestation, although the growth rate slows in the third trimester. Fetal activity and stretch on the cord are major factors determining length. There is a genetic component. Normal tables have been developed (Appendices B-4 and B-5), based on the entire length. Both abnormally long and short cords have significant clinical correlates. Long cords (>75 cm) are well associated with knots and fetal entanglements.

Membranous vessels adjacent to marginal cord insertions are common. Marginal and velamentous cords may be less mobile and more prone to compromise. The infants are slightly smaller on average. In many of the very peripheral insertions, there are a reduced number of fetal surface vessel branches. 23. Cord insertion into the free membranes (velamentous insertion) occurs in about 1% of deliveries. The vessels must be carefully examined for integrity and extent of membranous passage. Old hemorrhage behind the membranes is sometimes found where the cord attaches.

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